Drag saw



K. F. MILES June 9, 1925.

DRAG SAW Filed May l0, 1924 3 Sheets-Sheet l OOOO /f. fr/711728 K. F.MILES DRAG SAW Filed May lO, 1924 3 Sheets-Sheet 2 June 9, 1.925.

K. F. MILES DRAG SAW 5 Sheets-Sheet Filed May 1o, 1924 Patented June 9,1925'. i

KENNEYF. MILS; `OE PORTLAND, OREGON.

DRAG- SAW.

Application filed May 1e,

To all hohem t mag/ 4conce/ m :V

Beit known that l, KnNNnY F. MILES, a citizen of the United States,Aresiding at P ortland,` in the` county oit Multnomah and o'lQregom haveinvented certain new end usefulImprovements in Drag Saws', of Whichlthe,Jfollowing is a specification, reiterencer'being had totheacc'ompanyingI drawings. i

This invention `relates to certain improvements in `drag; sawsjand hasrelationmore "lll panticularly to a device of this general char-- act@lwhxchismotor .driven and 1t 1s an oh- ]ect o'l:' the`=invent1on toprovidea deviee oi.

this l'ind'embodying novel and improved means .whereby -thesame can bensedion 'felling trees or as a buckingsaw.

Another object of Athe invention isjto providea deviceof this generalcharacter" conn prisingn supporttogether with a sant carry'-A ing trainemounted thereon and "adapted to t be adjusted to diilerentlpositionsrinaccord! ance `With thecharactery ot' the work. said" supportyand'liramebeing provided. with, means to effect the requisitereciprocationo'l theusayv.. i

inve1ition-'-co1isists infthedetails of construction and inthecombinati'on and arrangement oii'the several parte of my improveddraor saw whereby certain important `advantages are attained rand'thedevice rendered simpler, less; expensive and. otherwise moreconvenient `and advantageous for use, as Twill be `hereinafter `morefully setV forth.. The novel. `features oi my invention will hereinafterbe definitelyl claimed; p

in order that my invention may be the better understood; I f rvillnoivproceed to de scribe the same with reference to the (aecompanylngydravvings, Wherein'z-fi Figure l isaviewlin top plan ,illustrating I a"drag saw operating mechanism constructed in accordancewith an embodimentof my invention and arr:I nged for cutting upa logt;

Figure 2 .is a detailed View partlyin section and paiftlyjin elevationot the mecha nism as lherein disclosed,` the lineotrsectionbeingsubstantially onthe line 2--2 of Figf urel i [Figureisa sectionalviewtalzen substantially `on thelline 343 of Figure'Q;

Figurei is a fragmentary View ein;` eleva:`

tion illustrating certainieatures of? the sawA head as herein comprisedY y y p Figure is qa viewpartly in! longitudinal section and partly i inelevation gotlthe struclsafi serial no. rimes partlyin elevationill'nstratiigfone ofthein- 65 l terchangeable bearings' as: hereindisclosed FigureA 8 is arview,in perspectivefo the/ members'for coactionWith the swinging, frame to hold thesame in'positin ,toeflectlV an`undercutwh'eir fellingaltres;v 70

` Figure 9 `is aview inn enfd 'elevation of the?interchangeablebearings'unapplied;

`Fi'gnrel0V `is afview.` inf perspectiveoflaf stand adapted to suppert"-one end of" the m'e'chanisln` when ellinga rtree Fig-nre 11 isA anienlarged" iraignnenteryf2` seetiona-l view illustrating a` means forhldf ing' ,thestand in itsvarions adjustments;`

Figure" l2' is'ca fragmentaryrview in top plan illustrating' the meansWherebgyfa chain A80 may1 be employed for holding thedevicein]` positienwithrespectlto-the Worl Y Figurefl is a .View inpers'pectfiveloftheImountingf` or stub shaitLperticularlyf` dis# closed inf Figure 125 f 35Figure ltis a tranien taryA elevationalr4 vieiv of yoneolthe dogsadaptedfto engager. the work when the'saw is usedfor louckingf;``

Figure l5 ,is afviewv'nftop plan illustrati' inge mechanism constructedin ac eo'rdance' Witl 1 ay further embodiment oit iny invention.

As'` disclosed `in the accompanying':drank ingsS denotes a;supportingstructure"eontl` prising` side members larrangedlin parl-Vlelism and herein disclosed asfeach'eonstitt 95 ing-fan angle iron; Themembers ,l in'terA mediate their ends `are connectedif byvthe 'i crossmembers 2, 3 and 4 alsohereindiselosed I as angleV irons and whichmaintain the side members l in predetermined space dfrelation."

Thecentral portions of the members 2, and'AV-are providedfwitlibearingsh which rotatably support the shaft 6, saidfshaftf intermediatethe members 2 and 3l beingf provided with the sprocketlwheel 7adaptedl105 to. `,be. operativelyengaged with a j suitablefsource of,power whereby the shaft 6 maybe i driven. t

Freely mounted ont theshaftf between@ Vthemembers 3 and l and.immediatelylad"110 jacent tovsaid membersare the parallel T ar'rhs`- `8provided at;th eir entenends'fWitlrtheL bearings for the shaft 10. Theshaft 10 is in parallelism with the shaft 6 and mounted on the centralportion of said shaft 10 is an outstanding yoke 1l, the central portionof which being provided with a bearing 12 arranged at right angles tothe shaft 10.

Fixed to the shafts 6 and 10 are the sprocket wheels 14 around which aredisposed the chain 15 whereby the shaft 1() is driven from the shaft 6.Fixed to the shaft 10 at a point within the yoke 11 is a gear 16 in meshwith the gear 17 carried by the inner end portion of a shaft 18 disposedthrough and rotatably supported by the bearing 12. This shaft 18 extendsbeyond the yoke 11 a desired length and has its `outer end terminatingin a. crank 19 for a purpose to be hereinafter more particularlyreferred to.

Engaged with the opposite end portions of the shaft 10 and with theshaft 18 are the bearing members 20, said members being of similarconstruction but as herein disclosed eachl of said members 20constituting a block provided in its opposite ends with the open slots21 through which are adapted to be disposed the headed members 22` andwith each of which members coacts in a well-known manner a quick actingnut 23.

Fixed to the outer end portion of the n shaft 18 and in close proximityto the crank 19 is a pair of spaced collars 24 and fixed on said shaft18 between the collars 24 is an eccentric 25. Disposed around theeccentric 25 are the straps 26, held in assembled relation by the nuts27 coacting with the outer faces of the contacting lugs 28 carried bythe extremities of the straps 26. The nuts 27 are threaded upon theguide rods 29 of desired length and inl sliding engagement with theserods 29 is a head H. The outer end portions of the rods 29 are connectedby a cross member 30 having disposed therethrough a kerf 31 throughwhich works the saw blade B. This blade B is operatively engaged withthe head H for reciprocation therewith, the connection between the headH and blade B being preferably in the manner disclosed in my application for patent executed on the 25th day of April, 1924.

One end portion of the member 30 is provided with a hand grasp 32whereby requisite pressure may be imposed upon the blade P during aworking operation to facilitate the desired cutting action. The innerend portion of the head H at substantially its transverse center hasoperatively engaged therewith, as at 33, a pitman 34 also operativelyengaged, as at 35, with a crank 19 so that upon rotation of the shaft 18requisite reciprocation may be imparted to the head H and the saw bladeB carried thereby.

The forward ends of the side members 1 are connected by the inwardlycurved arcu ate member 36 provided adjacent its opposite ends with theoutstanding penetrating members or prongs 37. The side members 1inwardly of their outer ends have secured f related elongated stub orarm 42 disposed through the adjacent flange of the member 1 and havingits outer end portion terminating in a reduced extremity 43, the freeend of which being provided with an outstanding radial lug 44. Anelongated arm 45 is provided at one end portion of a hub 46 the bore ofwhich having in communication therewith a radially disposed recess 47.The recess 47 provides means whereby the hub 46, when the arm 45 is inone position, is adapted to be engaged with the reduced portion 43 ofthe stub or arm 43, said lug 44 serving to hold the arm in appliedposition with respect to the stub or arm 42 when the arm 45 is swung toodset the recess 47 with respect to said lug 44.

The outer end portion of the arm 45 rotatably supports a block or pulley48 of a conventional type and with which an end portion of a chain 49 isengaged, the opposite end portion of said chain 49 being secured, as atYLt), to the forward end portion ot' the second side member 1,. Thepulley 48 carries a ratchet 5l with which engages a pawl 52 pivotallyengaged with the arm 45 and which pawl 52 serves to hold the block orpulley 48 against rotation in one direction for a purpose to behereinafter more particularly referred to.

The rear end portions of the side members 1 have secure-'d thereto theplates or members 53 provided with the inwardly directed stubs or lugs54 with which are pivotally engaged the extremities of a substantiallyV-shaped member 55, the apex portion of which being angularly disposed,said apex portion affording the straight member 5G to which a bearingmember 2O is adapted to be held as particularly illustrated in Figure 5,said straight member 5G being provided with suitably spaced openings 57through which are inserted the headed members 22 associated with saidbearing member 20. This straight member 56 is also provided with anopening 58 to receive the outstanding pin 59 carried by the centralportion of the bottom or base face of the bearing member 20.

As illustrated in Figure 5, the saw B is in a position for felling atree and with the arms 8 vertically disposed and the bearing memberQOengaged with the shaft 18 is fixed to the straight member 56 comprisedin the member 55. It is to be understood that by `turning the saw B overit will be caused 20 carried 'bythe shaftlSto the intermediate portion60 ofthe substantially U-shaped bracket 61, the free extremities rofwhich bracket being provided with angularly ree lated eyes 62 throughwhich are adapted to bedisposed the holding members 63 alsoengageablewith the cross members 3 and l ata suitable point thereon ateither side of the shaft 6. v 'This bracket 61 holds the saw inrequisite position to effect the desired undercut and after this hasbeen completed the shaft 1S ormore particularly the bearing member 2Ocarried thereby is released from the bracket 61 and said bearing memberis again affixed to the member which maintains the shaft 18 insubstantially a vertical position. l After the undercut has beencompleted the saw isturned over I and the cut throughthe tree finishedfrom the side opposite to the undercut.

`In felling a tree the chain or flexible member 419 is disposedthere-around and properly tightened thereon to hold the adjacent orforward end of the structure S thereto while the opposite end portion ofthe structure S'is adapted tobe supported by a stand A. This stand asparticularly illustrated in Figure'l() comprises a member 64substantially U-shapedin form and the free extremities of thesidemembers65 thereof adapted tobe suitably fixed to the side members 1 ofthestructure S. Overlying the members 65` are the legs 66, said legs beingadapted toV be adjusted longif tudinally` with `respect tothe -sidemembers 65 as the occasions of practice maynecessif tate'and in orderto. maintain said side mem bers 65 and legs 66 in requisite assembledrelation the same are provided with the coacting guide members 67. Eachof the side members 65 is provided with a series of longitudinallyspaced openings 68 in which is adapted to be selectively engaged aspring pressedlatch 69 carried by thel associated leg 66 whereby the legmay be held in desired adjustment with respect to the member 64 as theoccasions of practice may necessitate.

In Figure 1, the saw B is shown in a posi tion for use to buck a log butit is to be understood thatit can be arranged at either side of thestructure .S as may be preferred.

v `When used to buck, the structure S is held against the work by thedogs 40. vWhen so used the bearing member 2() carried by the shaft 18 isattached to a side member 1 of the structure S while the bearing members20 carried by the extremities of the shaft 10 arefixed `to the membersSand Il.

To further maintain the `arms 8 vertically disposedwhen the saw `B isemployed in felling a tree, I employ in connection with each Aofsaidarms the bracket TO one end, of which being provided with a head 71 withwhicha bearing member 20 carried by the end portion of a shaft 10 isengaged while l the opposite end is provided with an angular foot 72which is held to either cross member 3 or 4l.

The eccentric 25 rotates with the shaft- 18 `and coacts with the straps26 to oscillate theguide rods 29 whereby the saw will be similarlyoscillated or rocked in order to drag out the saw dust. i

In Fiv'ure 151 illustrateanother embodiment of my invention which .isprimarily intended for use in bucking although it can be employed toadvantage in felling a tree.

its comprised in this form the voke 11 is mounted directly on the shaft6 but other wise the structure is substantially the same as hashereinbefore been set forth of the first embodiment ofmy invention` Fromthe foregoing description it is thought that a drag saw constructed inac-` cordance with my invention is particularly well adapted for usebyreason of` theV convenience and facility with which it may be assembledand operated, and itrwill also be obvious that my invention issusceptible of some change and modification without departing from theprinoiplesand spirit there-` of and for this reason I do not wish to beunderstood as limiting myself. to the `precise arrangement andformation. of the several parts herein'shown in` carrying out my invention in practice except asl hereinafter claimed.

'I clainiz- 1. A saw maohineof the class described conjiprisingasupporting structure, a driven shaft carried thereby, a second4 shaftangu larly related to the first named shaft, means for supporting saidsecond named shaft for swinging movement about the first named shaft asan axis, an operative connection between both of the shafts, guidingmeans car ried by the second shaft, a saw head slidably engaged withsaid guiding means, an operative connection between the saw head and thesecond shaft, a movable member engaged with the supporting structure forswinging movement about an axis transverse to that of the first namedswinging movement, and a bearing carried by said movable member andengageable with the second shaft to hold said second shaft iu oneposition.

CII

Q. A saw mechanism of the class described comprising a supportingstructure, a driven shaft carried thereby, arms freely engaged with saidshaft, a second shaft supported by said arms, a yoke freely engagedvwith the second shaft, a third shaft carried by said yoke and angularlyrelated to the second shaft, a driving` connection between the first twoshafts, a driving connection between the last two shafts, means forholding the last two named shafts against relative swinging movement,guiding means carried by the second shaft, a saw head slidably engagedwith said guiding means, and an operative connection between the sawhead and the second shaft.

Pi. A saw mechanism of the class described comprising a supportingstructure, a driven shaft carried thereby, arms freely engaged with saidshaft, a second shaft supported by said arms, a yoke freely engagedAwith the second shaft, a third shaft carried by said yoke and angularlyrelated to the second shaft, a driving connection between the first twoshafts, a driving connection between the last two shafts, means forholding the first named shafts against relative swinging movement,guiding means carried by the second shaft, a saw head slidably engagedwith said guiding means, and an operative coniiection between the sawhead and the secon d shaft.

4t. A saw mechanism of the class described comprising a supportingstructure, a driven shaft carried thereby, arms freely engaged with saidshaft, a second shaft supported by said arms, a yoke freely engaged with.the second shaft, a third shaft carried by said yoke and angularlyrelated to the sec ond shaft, a driving connection between the .firsttwo shafts, a driving connection between tlie last two shafts, means forholding the first named shafts against relative swinging movement, meansfor holding the last two named shafts against relative swingingmovement, guiding means carried by the second shaft, a saw head slidablyengaged with said guiding means, and an operative connection between thesaw head and the second shaft.

A saw mechanism of the class described comprising a supportingstructure, a driven shaft carried thereby, arms freely engaged with saidshaft, a second shaft supported by said arms, a yoke freely engaged withthe second shaft, a third shaft carried by said yoke and angularlyrelated to the second shaft, a driving connection between the first twoshafts, a driving connection between the last 'two shafts, means forholding the last named shaft in a position disposed transversely of thesupporting structure, guiding means carried by the second shaft, a sawhead slidably engaged with said guiding means, and an operativeconnection betwee=.4 the saw head and the second shaft.

G. A saw mechanism of the class described comprising a supportingstructure, a driven shaft carried thereby, arms freely engaged with saidshaft, a second shaft supported by said arms, a yoke freely engaged withthe second shaft, a third shaft carried by said yoke and singularlyrelated to the second shaft, a driving connection between the first twoshafts, a driving connection between the last two shafts, means forholding the last named shaft vertically disposed, guiding means carrielby the second shaft, a saw head slidably engaged with said guidingmeans, and an operative connection between the saw head and the secondshaft.

7. A saw mechanism of the class described comprising a supportingstructure, a driven shaft carried thereby, arms freely engaged, withsaid shaft, a second shaft supported by said arms, a yoke freely engagedwith the second shaft, a third shaft carried by said yoke and angularlyrelated to the second shaft, a driving connection between the first twoshafts, a driving connection between the last two shafts, means forholding the last named shaft on a downwardly disposed incline, guidingmeans carried by the second shaft, a saw head slidably engaged with saidguiding means, and an operative connection between the saw head and thesecond shaft.

n testimony whereof I hereunto affixr my signature.

KENNEY F. MILES.

